[R-sig-ME] autocorrelation by group in mixed model

Irene Mantzouni ima at difres.dk
Fri Jan 11 17:41:44 CET 2008


Hi all!
 
(How) is it possible to fit a mixed model with group specific auto-correlation structure ? For instance, not all my groups display auto-correlation so I would like to use a corMatrix (corAR1) only for the auto-correlated ones. If I construct manually a
the corMatrix, is it possible to use it  as input somehow?
 
thank you!
 
Irene




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